|Rank|Nation|Gold|Silver|Bronze|Total|
|---|---|---|---|---|---|
|1|South Korea|7|6|1|14|
|2|China|5|5|2|12|
|3|Japan|3|1|5|9|
|4|Hong Kong|2|3|5|10|
|5|Chinese Taipei|2|0|0|2|
|6|Iran|1|3|2|6|
|7|Thailand|1|2|3|6|
|8|Malaysia|1|1|5|7|
|9|Kyrgyzstan|1|0|0|1|
|10|Kazakhstan|0|1|0|1|
|10|Uzbekistan|0|1|0|1|
|Total|Total|23|23|23|69|

Question: how many teams won at least three bronze medals in this event?
Answer: 4